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参数资料
| 型号： | CAT28C256PA-15 |
| 元件分类： | PROM |
| 英文描述： | 32K X 8 EEPROM 5V, 150 ns, PDIP28 |
| 封装： | PLASTIC, DIP-28 |
| 文件页数： | 1/12页 |
| 文件大小： | 525K |
| 代理商： | CAT28C256PA-15 |
1
CAT28C256
256K-Bit Parallel EEPROM
FEATURES
■ Fast read access times: 120/150ns
■ Low power CMOS dissipation:
–Active: 25 mA max
–Standby: 150
A max
■ Simple write operation:
–On-chip address and data latches
–Self-timed write cycle with auto-clear
■ Fast write cycle time:
–5ms max
■ CMOS and TTL compatible I/O
■ Hardware and software write protection
■ Automatic page write operation:
–1 to 64 bytes in 5ms
–Page load timer
■ End of write detection:
–Toggle bit
–
DATA
DATA polling
■ 100,000 program/erase cycles
■ 100 year data retention
■ Commerical, industrial and automotive
temperature ranges
DESCRIPTION
The CAT28C256 is a fast, low power, 5V-only CMOS
parallel EEPROM organized as 32K x 8-bits. It requires a
simple interface for in-system programming. On-chip
address and data latches, self-timed write cycle with auto-
clear and VCC power up/down write protection eliminate
additional timing and protection hardware. DATA Polling
and Toggle status bits signal the start and end of the self-
timed write cycle. Additionally, the CAT28C256 features
hardware and software write protection.
The CAT28C256 is manufactured using Catalyst’s ad-
vanced CMOS floating gate technology. It is designed to
endure 100,000 program/erase cycles and has a data
retention of 100 years. The device is available in JEDEC
approved 28-pin DIP, 28-pin TSOP or 32-pin PLCC
packages.
BLOCK DIAGRAM
2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ADDR. BUFFER
& LATCHES
ADDR. BUFFER
& LATCHES
INADVERTENT
WRITE
PROTECTION
CONTROL
LOGIC
TIMER
ROW
DECODER
COLUMN
DECODER
HIGH VOLTAGE
GENERATOR
A6–A14
CE
OE
WE
A0–A5
I/O0–I/O7
I/O BUFFERS
32,768 x 8
EEPROM
ARRAY
64 BYTE PAGE
REGISTER
VCC
DATA POLLING
AND
TOGGLE BIT
Doc. No. 1004, Rev. D
HA
LOGEN FREE
TM
LEAD FREE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT28C256PI-12 | 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT28C256PI-15 | 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT28C256T13-12 | 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT28C256T13-15 | 功能描述:电可擦除可编程只读存储器 (32kx8) 256K 5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT28C256T13-15-T | 制造商:ON Semiconductor 功能描述:EEPROM Parallel 256K-Bit 32K x 8 5V 28-Pin TSOP T/R |
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